• David S. Miller's avatar
    [SPARC64]: Get PCI floppies fully functional again. · 64383da3
    David S. Miller authored
    EBUS DMA fixes:
    - Add EBUS_DMA_FLAG_TCI_DISABLE that the client can set if it
      wants only to hear device interrupts, not DMA complete ones.
    - When initially resetting the EBUS DMA unit, put valid burst etc.
      encodings in the CSR register.  Not doing this appears to leave
      the attached ISA device in a weird state.
    
    PCI FLOPPY fixes:
    - Do ebus_dma_enable() before ebus_dma_request()
    - In sun_pci_fd_set_dma_mode() do not forget to set the direction.
    - Set EBUS_DMA_FLAG_TCI_DISABLE in ebus_dma flags.
    - Make sure that in error paths sun_fdc/FCD1 will be -1 (invalid).
    
    Thanks to Soyoung Park for loaning her Ultra5 to me so I could fix this.
    64383da3
floppy.h 20.1 KB